Iranian authorities arrested a female student on Saturday after she staged a solo protest against harassment by stripping to her underwear outside her university, reports said.

The woman, who has not been identified, had been harassed inside Tehran’s prestigious Islamic Azad University by members of the Basij paramilitary force who ripped her headscarf and clothes, according to reports by several news outlets and social media channels outside Iran.

She then took off her clothes in protest and sat outside the university dressed in just her underwear before defiantly walking in the street to the astonishment of passers-by, videos posted on social media showed.